<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>26_this的介绍</title>
  </head>
  <body>
    <script>
      var name = "张三";
      function test(a, b) {
        alert(this.name + "-" + a + "-" + b);
      }
      //   test()//window.test() 张三
      var obj = {
        name: "李四",
      };
      //   test.call(obj,1,2)//改变this指向并执行这个函数
      // test.apply(obj,[1,2])//改变this指向并执行这个函数
      const func = test.bind(obj, 1, 2);
      func();
    </script>
  </body>
</html>
